Any question answered...

@CYOA @MCamb

Cheers for the replies, must admit I'm a bit out of my depth here, I do sound for video games so all these spec requirements are totally alien to me. I'm just being asked by the ads department to take over from some outrageously overpriced audio outsourcer they were using before.

I think something seems to be going wrong their end. Here's a brief overview of what I'm doing:

• I get reference video from the ads team
  
• I get reference audio from the previous audio outsourcer
  
• I put them together, line them up, add new stuff related to the new videos
  
• I export the audio as a WAV
  
• I check against the video file, all looks good
  
• The ads team say may audio is late.
  
  

I'm using Nuendo btw, and Premier to test them.

If I compare a video I made, to a video they've made showing me my sound out of sync, it seems the audio in theirs comes in about 5 frames later.

Definitely not a sample rate issue btw, everything is at 48khz.